|本期目录/Table of Contents|

[1]黄振华,高雷,赵惠瑩,等.基于阳离子表面活性剂乳液模板法的SiO2 气凝胶微球制备及性能研究[J].浙江理工大学学报,2025,53-54(自科六):795-805.
　HUANG Zhenhua,GAO Lei,ZHAO Huiying,et al.A study on the preparation and performance of SiO2 aerogel microspheres based on cationic surfactant emulsion templating method[J].Journal of Zhejiang Sci-Tech University,2025,53-54(自科六):795-805.
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基于阳离子表面活性剂乳液模板法的SiO2 气凝胶微球制备及性能研究()
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浙江理工大学学报[ISSN:1673-3851/CN:33-1338/TS]

卷:
第53-54卷
期数:
2025年自科第六期
页码:
795-805
栏目:
出版日期:
2025-11-10

文章信息/Info

Title:
A study on the preparation and performance of SiO2 aerogel microspheres based on cationic surfactant emulsion templating method
文章编号:
1673-3851(2025)11-0795-11
作者:
黄振华; 高雷; 赵惠瑩; 王懿佳; 吴明华
浙江理工大学,a.纺织科学与工程学院(国际丝绸学院);b.生态染整技术教育部工程研究中心,杭州310018
Author(s):
HUANG Zhenhua;  GAO Lei;  ZHAO Huiying;  WANG Yijia;  WU Minghua
a. College of Textile Science and Engineering (International Institute of Silk); b. Engineering Research Center of Eco-dyeing and Finishing Technology of Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China
关键词:
甲基三甲氧基硅烷; SiO2 气凝胶微球; 乳液模板法; 阳离子表面活性剂
分类号:
TQ424.26
文献标志码:
A
摘要:
为提升SiO2 气凝胶微球的形貌规整度并缩短制备周期,以甲基三甲氧基硅烷(MTMS)为硅源分散相,水和乙醇混合液为连续相,阳离子表面活性剂为乳化剂及分散剂,氨水为 MTMS水解、缩合催化剂,通过乳液模板法制备SiO2 气凝胶微球,探究体系中阳离子表面活性剂结构和浓度、乙醇/水体积比、氨水用量对SiO2 气凝胶微球的形貌和导热系数的影响。结果表明:阳离子表面活性剂的疏水链长及其所制 MTMS乳液的Zeta电位对SiO2 气凝胶微球形貌起主要影响作用;优选阳离子表面活性剂十八烷基三甲基溴化铵(OTAB)为乳化剂及分散剂。当OTAB浓度为20mmol/L,乙醇/水体积比为3∶7,氨水用量为2.5mL时,所制SiO2 气凝胶微球形貌最佳,平均粒径可达220nm,平均孔径为3.595nm,孔体积为0.586cm3/g,比表面积为689.636m2/g,导热系数为0.0453W/(m·K),水接触角为145.1°。该研究可为制备形貌规整的SiO2 气凝胶微球提供一定的技术参考。

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备注/Memo

备注/Memo:
收稿日期:2025-03-31 网络出版日期:2025-06-26 作者简介:黄振华(1999— ),男,福建三明人,硕士研究生,主要从事纺织品功能整理方面的研究。通信作者:吴明华,E-Mail:wmh@zstu.edu.cn
更新日期/Last Update: 2025-11-25